摘要
为筛选防治水稻二化螟、稻纵卷叶螟、稻瘟病的高效安全药剂,于2015年7月在田间进行了药剂防治试验。结果表明,20%氟苯虫酰胺水分散粒剂及40%稻瘟灵乳油防效突出。20%氟苯虫酰胺水分散粒剂150 g/hm^2对水稻二化螟药后7、14 d防效分别为85.7%、95.9%,药后28 d保苗效果95.6%;对稻纵卷叶螟7 d防效达92.2%;21 d保叶效果94.9%;40%稻瘟灵乳油1 500 m L/hm^2穗期2次施药对穗颈瘟防效达86.3%~98.4%,20%氟苯虫酰胺水分散粒剂+40%稻瘟灵乳油水稻增产效果为42.11%。
For screening of efficient security agents to control rice stem borer, rice leaf folder,rice blast, control test was carried out in the field in July 2015.The results showed that control effect of 20% fluorobonzene worm amide WGD and 40% rice blast spirit EC was prominent. Control effect of 20% fluorobenzene worm amide WGD 150 g/hm2 on rice stem borer after applying pesticide 7,14 d was 85.7% ,95.9% respectively; seedling protecting effect was 95.6% after applying pesticide 28 d.Control effect on flee leaf folder after applying pesticide 7 d was 92.2% ;seedling protecting effect was 94.9% after applying pesticide 21d. Control effect of 40% flee blast spirit EC 1 500 mL/hm2 applying pesticide twice in ear period on rice blast was 86.3%-98.4%.Rice production of 20% fluorobenzene worm amide WGD＋40% rice blast spirit EC was 42.11%.
出处
《现代农业科技》
2016年第4期99-100,共2页
Modern Agricultural Science and Technology
